1. Understanding 14 Figure Grid Referencing

2. Background
Accurately locating places on a blank map outline is difficult
by putting a grid system over the top of the blank outline it is much easier to locate places accurately
Adding numbers to the grid allows us to create coordinates

3. We can use the coordinates to find specific locations - like playing Battleships
H4 G Hit (in the square)
Except here we use 14 digits for pinpoint accuracy!! X E N

4. You can Zoom in from the NZ Grid to local areas

5. The Grid

6. With Numbers First there is a Grid 6462000N
Numbers up the side are Northings N
Numbers across the bottom are Eastings N E E E

7. The Grid has graduations
there are 1000 graduations between 61 and 62 too... N
There are 1000 graduations between line 90 and 91 N E E E

8. The Numbers let you locate points on the map
The first two digits E N are for the location in NZ –don’t worry too much about these two numbers
The next two digits E N are ones you see on the map grid as 90, 91, 92E... 60, 61,62N...these are your starting point

9. The Numbers let you locate points on the map
The final three digits E N indicate how far to go between each gridline
000 is smack on the gridline
will be ¼ way across
500 will be ½ way across
750 will be ¾ of the way across......

10. Putting it together....
E.g. To find out what is at grid reference number E N.....
Go along the bottom to E and mark the point
Next go up the side to N
Then simply identify the feature where the two intersect x

11. Acknowledgements Peter Arthur – Howick College
Charlotte Gipps – Epsom Girls’ Grammar
accessed 10/6/08
H McMillan – Saint Kentigern College
Martin Newton